Manava Dharmashastra 4.218

4.218

athedānīmatikramaphalaṃ darśayati | rājānnabhojinastejonāśaḥ | evaṃ sarvatra draṣṭavyam | suvarṇakārādayaḥ śabdāḥ śilpiviśeṣajīvināṃ vācakāḥ | ye suvarṇaṃ jīvikārthaṃ ghaṭayanti suvarṇakārā ucyante | evaṃ rajakādiṣvapi draṣṭavyam | carmavikṛntati chindati carmavikartinaḥ | tena karmaṇā ye jīvanti teṣāmeṣā rūḍhiḥ | iha yeṣāṃ pūrvatra pratiṣedho nāsti kevalaṃ doṣaḥ śrūyate teṣāṃ tata eva pratiṣedho'numeyaḥ |

Medhātithi’s commentary (manubhāṣya):
The Text now proceeds to describe the effects of transgressing the above prohibitions.

One who eats the king’s food loses his vigour; and so with all the rest.

The terms ‘goldsmith’ and the rest, are denotative of particular professions; so that those persons who deal in making articles of gold are called goldsmiths. Similarly, with ‘dyer’ and other terms. Those who cut leather are called ‘leather-cutters,’ this name being applied to those who live by this trade.

In the present context, there are some whose food has not been forbidden in the foregoing verses; but the evil results flowing therefrom are now described; the prohibition of these is to be inferred from the latter.—(218)